Big light ring projection optical devices
The utility model discloses a big light ring projection optical devices has set gradually to sending out optical chip from throwing the face: first lens, first lens are spherical lens, and the focal power is for bearing, second lens, second lens are aspherical lens, and the focal power is the burden...
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| Hauptverfasser: | , , , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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